基于串并行联合译码的中继编码协作系统构造与性能研究

Construction and Performance of Relay Coded Cooperative System based on Serial and Parallel Joint Decoding

为了有效抵抗噪声引起的纠错能力损失,ELS码被用于中继协作。在描述RS码的编译码方法的前提下,构造了两种基于联合RS译码的中继编码协作系统,并详细分析了系统设计思路。根据系统仿真结果,与非协作情况相比,在不同的联合译码方式下,系统有不同水平的纠错能力提高。同时,可以得出结论,系统性能与在中继节点处选择的信息比特的长度以及源节点和中继节点之间的信噪比差值有关。

In order to effectively resist the loss of error correction capability caused by noise, the RS code is used for relay cooperation. This paper describes the encoding and decoding method of RS code, and two relay coding cooperative systems based on joint RS decoding are constructed, the system design ideas are analyzed in detail. System simulation results and comparison with the non-cooperative case indicate that this system has different levels of error correction capability under different joint decoding modes. And at the same time, it can be concluded that the system performance is closely related to the length of the information bits selected at the relay node and the signal-to-noise ratio difference between the source node and the relay node.